All of these are technical issues which will be solved by Google eventually, I'm not worrying much about that, they definitely have the resources to make it work.
And there is Kotlin-Native but the likelihood of JetBrains reimplementing the entire JVM SDK is pretty slim. Not to mention all of the common third party libraries e.g. Guava, HTTPClient.
Yes but there's a lot of efforts from Google to support the language as well since now it's the new Android language.
Kotlin is just one option more, and the tooling is still not mature as Java.
Specially in compile speed, incremental compilation, debugging, speed in type completion, FFI.
https://developer.android.com/guide/components/fundamentals?...
"Android apps can be written using Kotlin, Java, and C++ languages. "
And regarding Google, Kotlin is not among the beloved ChromeOS and Fuchsia languages.
So it depends very much on their internal politics.
I believe it supports Most Android and Linux apps now.
Android and Linux apps support is made via containers, aka they are not native to the OS, and isn't supported across all Chromebooks models being sold.
And even then, there are support issues.